CellCube vanadium redox flow battery for the future of mobility

In Martigny (Switzerland) a CellCube vanadium redox flow energy storage system will be installed end of 2015 as basis for the fueling station of the future.

The project in Martigny is foreshadowing how fueling stations could look like in several years. The project is led by the "Laboratory of Physical and Analytical Electrochemistry" (LEPA) of the "École Polytechnique Fédérale de Lausanne" (EPFL). The aim is to establish a charging station that is able to charge both battery-electric and hydrogen fuel cell vehicles through the integration of renewable energies. Herewith the type of infrastructure needed to transition to alternatively fueled vehicles can be explored.


Second CellCube at the LEPA
The CellCube FB 200-400 is already the second vanadium redox flow storage system in Martigny. A smaller CellCube FB 10-40 system already has operated for over one year at the LEPA. "We are glad that our CellCube has proven itself for the LEPA and that we can realize the follow-up project in December", said Bengt Stahlschmidt, Head of Global Sales of the GILDEMEISTER energy storage GmbH.
Professor Hubert Girault, director of the LEPA stresses: "We chose the CellCube system because GILDEMEISTER energy solutions is an established manufacturer in the redox flow battery market, and we have had good success with their systems in a previous project."

Large scale storage system
To implement the project a CellCube FB 200-400 with a power output of 200 kilowatt and a storage capacity of 400 kilowatt hours will be installed in Martigny. It forms the center piece of the planned fueling station. As control center the CellCube is used for charging electric vehicles as well as for supplying energy to two electrolyzers which produce hydrogen for the hydrogen fuel cell vehicles. Additionally the storage system isolates the fueling station from disturbances in the power grid. Also the CellCube will determine when to optimally charge and when to discharge back into the electric grid. In the course of the project the control will be optimized in order to enable the operation of the fueling station solely through renewable energies.

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